From 89253992b8237d8c3bd93c2194dcd8bc18fa55db Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Tue, 26 May 2015 11:51:34 -0400
Subject: [PATCH] Tests: Add case for rejecting $<TARGET_FILE:...> on an
 INTERFACE library

Add an explicit test for this existing error.  We already cover it for
an OBJECT library but INTERFACE libraries are not allowed either.
---
 .../BadTargetTypeInterface-result.txt         |  1 +
 .../BadTargetTypeInterface-stderr.txt         | 26 +++++++++++++++++++
 .../BadTargetTypeInterface.cmake              |  6 +++++
 .../GeneratorExpression/RunCMakeTest.cmake    |  1 +
 4 files changed, 34 insertions(+)
 create mode 100644 Tests/RunCMake/GeneratorExpression/BadTargetTypeInterface-result.txt
 create mode 100644 Tests/RunCMake/GeneratorExpression/BadTargetTypeInterface-stderr.txt
 create mode 100644 Tests/RunCMake/GeneratorExpression/BadTargetTypeInterface.cmake

diff --git a/Tests/RunCMake/GeneratorExpression/BadTargetTypeInterface-result.txt b/Tests/RunCMake/GeneratorExpression/BadTargetTypeInterface-result.txt
new file mode 100644
index 000000000..d00491fd7
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/BadTargetTypeInterface-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/BadTargetTypeInterface-stderr.txt b/Tests/RunCMake/GeneratorExpression/BadTargetTypeInterface-stderr.txt
new file mode 100644
index 000000000..3aa457eee
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/BadTargetTypeInterface-stderr.txt
@@ -0,0 +1,26 @@
+CMake Error at BadTargetTypeInterface.cmake:[0-9]+ \(add_custom_target\):
+  Error evaluating generator expression:
+
+    \$<TARGET_FILE:iface>
+
+  Target "iface" is not an executable or library.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)
++
+CMake Error at BadTargetTypeInterface.cmake:[0-9]+ \(add_custom_target\):
+  Error evaluating generator expression:
+
+    \$<TARGET_SONAME_FILE:iface>
+
+  Target "iface" is not an executable or library.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)
++
+CMake Error at BadTargetTypeInterface.cmake:[0-9]+ \(add_custom_target\):
+  Error evaluating generator expression:
+
+    \$<TARGET_LINKER_FILE:iface>
+
+  Target "iface" is not an executable or library.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/BadTargetTypeInterface.cmake b/Tests/RunCMake/GeneratorExpression/BadTargetTypeInterface.cmake
new file mode 100644
index 000000000..19566f439
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/BadTargetTypeInterface.cmake
@@ -0,0 +1,6 @@
+add_library(iface INTERFACE)
+add_custom_target(check ALL COMMAND echo
+  $<TARGET_FILE:iface>
+  $<TARGET_SONAME_FILE:iface>
+  $<TARGET_LINKER_FILE:iface>
+  )
diff --git a/Tests/RunCMake/GeneratorExpression/RunCMakeTest.cmake b/Tests/RunCMake/GeneratorExpression/RunCMakeTest.cmake
index 542b7fc87..1c8fab534 100644
--- a/Tests/RunCMake/GeneratorExpression/RunCMakeTest.cmake
+++ b/Tests/RunCMake/GeneratorExpression/RunCMakeTest.cmake
@@ -7,6 +7,7 @@ run_cmake(BadNOT)
 run_cmake(BadStrEqual)
 run_cmake(BadZero)
 run_cmake(BadTargetName)
+run_cmake(BadTargetTypeInterface)
 run_cmake(BadTargetTypeObject)
 run_cmake(BadInstallPrefix)
 run_cmake(CMP0044-WARN)